Potato Rosti Pancakes With Mushrooms Recipe

For the potato rosti or pancakes you need:

Grated potatoes, one onion, couple of eggs, salt, pepper. Combine all together and set aside for later.

For the mushroom sauce you need:

butter, onion, mushrooms, soy sauce, paprika powder, salt, pepper, pure sour cream (the pure sour cream without any gelatin and co. in it is the best, btw it is the cheapest one at our supermarket), some fresh parsley